CN215663385U - Air bleed screw with change brake fluid function - Google Patents
Air bleed screw with change brake fluid function Download PDFInfo
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- CN215663385U CN215663385U CN202120168827.9U CN202120168827U CN215663385U CN 215663385 U CN215663385 U CN 215663385U CN 202120168827 U CN202120168827 U CN 202120168827U CN 215663385 U CN215663385 U CN 215663385U
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- brake fluid
- screw
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- metal screw
- sheath
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Abstract
The utility model relates to a bleeding screw with a brake fluid replacing function, and belongs to the technical field of automobile parts. The air release screw with the brake fluid replacing function comprises a metal screw, wherein a cavity extending from the top of the metal screw to the position near the bottom end is arranged in the metal screw, a through hole communicated with the cavity is formed in the side wall of the bottom end, and a sheath is arranged on the top; the cavity is internally provided with a compression bag assembly, the compression bag assembly comprises a bag body and sealing rubber fixedly connected with the bag body, the sealing rubber is in sealing fit with the inner side wall of the cavity, and the sealing rubber is provided with a one-way valve. The deflation screw with the brake fluid replacing function simplifies the operations of deflation and brake fluid replacement, can store the brake fluid and avoids the damage of brake fluid splashing.
Description
Technical Field
The utility model relates to the technical field of automobile parts, in particular to a bleeding screw with a brake fluid replacing function.
Background
In the prior art, as shown in fig. 1-3, the bleeding screw is generally composed of a metal screw 2 and a rubber sheath 1, wherein the metal screw 2 is provided with an oil through hole, and the conical surface of the bottom of the metal screw 2 is sealed with the conical surface of the brake caliper 3. The structure generally needs to be externally connected with a special conduit to communicate the air bleed screw with the liquid storage device, air bleed of the braking system and replacement of brake fluid are realized by screwing the air bleed screw, but the special device is needed to recover the brake fluid and needs to be completed by multiple persons in a matching way, so that more working hours and cost are spent; and the brake fluid is easy to splash, pollutes the environment and is not easy to clean.
SUMMERY OF THE UTILITY MODEL
In order to solve the above technical problems in the prior art, an object of the present invention is to provide a bleeding screw having a function of replacing brake fluid.
The air release screw with the brake fluid replacing function comprises a metal screw, wherein a cavity extending from the top of the metal screw to the position near the bottom end is formed in the metal screw, a through hole communicated with the cavity is formed in the side wall of the bottom end, and a sheath is arranged on the top; the method is characterized in that: the cavity is internally provided with a compression bag assembly, the compression bag assembly comprises a bag body and sealing rubber fixedly connected with the bag body, the sealing rubber is in sealing fit with the inner side wall of the cavity, and the sealing rubber is provided with a one-way valve.
Wherein, the bottom end of the metal screw is provided with a conical structure,
wherein the sheath is a rubber sheath.
Wherein the cavity is disposed along an axial direction of the metal screw.
The upper portion of metal screw is provided with the step face, be provided with the joint structure on the upper portion lateral wall of metal screw, the sheath sets up on the step face and with the cooperation of joint structure joint.
Compared with the prior art, the deflating screw has the following beneficial effects:
(1) the operation of air bleeding and brake fluid replacement is simplified, and the labor cost in the air bleeding and brake fluid replacement process is reduced;
(2) the brake fluid can be stored, and the damage of brake fluid splashing is avoided.
Drawings
FIG. 1 is a schematic view of a prior art bleeder screw application position.
Fig. 2 is an enlarged partial view of the bleeder screw encircled in fig. 1.
FIG. 3 is a cross-sectional view of the bleeder screw in the position circled in FIG. 2.
Fig. 4 is a structural view of the bleeder screw of the present invention.
Fig. 5 is a schematic cross-sectional view taken along the direction E-E in fig. 4.
Fig. 6 is an enlarged schematic view of a circled portion in fig. 5.
Fig. 7 is a functional diagram of the bleeder screw of the present invention.
Detailed Description
The bleeding screw with brake fluid replacing function of the present invention will be further described with reference to the following embodiments to help those skilled in the art to more fully, accurately and deeply understand the technical solution of the present invention.
Example 1
As shown in fig. 4 to 6, the bleeding screw with a function of replacing brake fluid of the present embodiment includes a metal screw 10, a cavity 11 extending from a top of the metal screw 10 to a position near the bottom end is provided in the metal screw 10, a tapered structure 14 is provided at a bottom end of the metal screw 10, a through hole 15 communicating with the cavity 11 is provided on a side wall of the bottom end, a sheath 20 is provided on the top, and the sheath 20 is preferably a rubber sheath. The metal screw 10 may be designed as an axisymmetric structure, and the cavity 11 is disposed along an axial direction of the metal screw 10. A compression bag assembly 30 is arranged in the cavity 11, the compression bag assembly 30 comprises a bag body 31 and sealing rubber 32 fixedly connected with the bag body 31, the sealing rubber 32 is in sealing fit with the inner side wall of the cavity 11, and a one-way valve 33 is arranged on the sealing rubber 32. In this embodiment, the upper portion of the metal screw 10 is provided with a step surface 32, and the upper side wall of the metal screw 10 is provided with a clamping structure 13, and the sheath 20 is disposed on the step surface 32 and is in clamping fit with the clamping structure 13. As shown in fig. 7, with the bleeder screw of this embodiment, 1 standard atmospheric pressure can be obtained by opening the lid of the brake fluid pot (the lid of the position for filling the brake fluid to the vehicle), and the vacuum chamber 50 can be formed in the cavity by unscrewing the sheath and pulling out the bag body 31. Waste gas and brake fluid in the brake system flow into the bag body 31 through the through hole 15 and the one-way valve under the action of differential pressure and the dead weight of the brake fluid (the bag is expanded and opened), and meanwhile, new brake fluid is filled into the brake fluid pot.
The deflating screw of the embodiment simplifies the operations of deflating and brake fluid replacement, and the brake fluid is stored by adding the compression bag assembly for storing the liquid on the deflating screw, so that the brake fluid is prevented from being splashed.
It is obvious to those skilled in the art that the specific embodiments are only exemplary descriptions of the present invention, and it is obvious that the specific implementation of the present invention is not limited by the above-mentioned manner, and various insubstantial modifications made by the method concept and technical scheme of the present invention are within the protection scope of the present invention.
Claims (5)
1. A deflation screw with a brake fluid replacing function comprises a metal screw, wherein a cavity extending from the top of the metal screw to the position near the bottom end is arranged in the metal screw, a through hole communicated with the cavity is formed in the side wall of the bottom end, and a sheath is arranged on the top; the method is characterized in that: the cavity is internally provided with a compression bag assembly, the compression bag assembly comprises a bag body and sealing rubber fixedly connected with the bag body, the sealing rubber is in sealing fit with the inner side wall of the cavity, and the sealing rubber is provided with a one-way valve.
2. The bleeding screw having a function of replacing brake fluid according to claim 1, characterized in that: the bottom end of the metal screw is provided with a conical structure.
3. The bleeding screw having a function of replacing brake fluid according to claim 1, characterized in that: the sheath is a rubber sheath.
4. The bleeding screw having a function of replacing brake fluid according to claim 1, characterized in that: the cavity is arranged along the axial direction of the metal screw.
5. The bleeding screw having a function of replacing brake fluid according to claim 1, characterized in that: the upper portion of metal screw is provided with the step face, be provided with the joint structure on the upper portion lateral wall of metal screw, the sheath sets up on the step face and with the cooperation of joint structure joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120168827.9U CN215663385U (en) | 2021-01-21 | 2021-01-21 | Air bleed screw with change brake fluid function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120168827.9U CN215663385U (en) | 2021-01-21 | 2021-01-21 | Air bleed screw with change brake fluid function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215663385U true CN215663385U (en) | 2022-01-28 |
Family
ID=79950352
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120168827.9U Active CN215663385U (en) | 2021-01-21 | 2021-01-21 | Air bleed screw with change brake fluid function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215663385U (en) |
-
2021
- 2021-01-21 CN CN202120168827.9U patent/CN215663385U/en active Active
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